Home / 131,653.35-197,145.90-72,422.10

Finding the Fourth Proportional to 131,653.35, 197,145.90 and 72,422.10

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Solution

The fourth proportional to 131,653.35, 197,145.90 and 72,422.10 is: 108,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,653.35 : 197,145.90 = 72,422.10 : x
  2. Step 2: Convert to fraction form
    131,653.35/197,145.90 = 72,422.10/x
  3. Step 3: Cross multiply
    131,653.35x = 197,145.90 × 72,422.10
  4. Step 4: Simplify right side
    131,653.35x = 14,277,720,084.39
  5. Step 5: Solve for x
    x = 14,277,720,084.39/131,653.35
  6. Step 6: Final answer
    x = 108,449.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.